EP 0594922 A1 19940504 - AC integrated coupler with phase equalizer.
Title (en)
AC integrated coupler with phase equalizer.
Title (de)
Integrierte Kopplungsschaltung für Wechselstrom mit Phasenausgleich.
Title (fr)
Circuit intégré de couplage alternatif avec égalisation de phase.
Publication
Application
Priority
EP 92830603 A 19921030
Abstract (en)
A monolithically integrated AC coupler comprising two capacitors, C1 and C2, respectively connected between an input terminal Vin and an output terminal Vout, and between one said output terminal and a first terminal of connection to a reference potential Vref1. Connected in parallel with the capacitor C1, and serially together, are a capacitor C3 and two field-effect transistors, M1 and M2. Two field-effect transistors, M3 and M4, are connected between the output terminal and a second terminal of connection to a reference potential, Vref2. The connection nodes between the transistors M1 and M2 and between the transistors M3 and M4 are coupled, through two capacitors CS1 and CS2, to the first connection terminal Vref1. The gate terminals of the transistors are applied control signals with two non-overlapping phases, F1 and F2. <IMAGE>
IPC 1-7
IPC 8 full level
H03H 7/06 (2006.01); H03H 7/00 (2006.01); H03H 11/34 (2006.01); H03H 11/36 (2006.01); H04M 1/60 (2006.01); H04M 1/76 (2006.01)
CPC (source: EP US)
H03H 7/004 (2013.01 - EP US); H04M 1/6025 (2013.01 - EP US)
Citation (search report)
- [A] US 4801888 A 19890131 - HAQUE YUSUF A [US]
- [A] IEEE JOURNAL OF SOLID STATE CIRCUITS vol. 26, no. 7, July 1991, NEW YORK pages 1015 - 1026 DIELACHER ET AL 'A SOFTWARE PROGRAMMABLE CMOS TELEPHONE CIRCUIT'
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0594922 A1 19940504; EP 0594922 B1 19990804; DE 69229734 D1 19990909; DE 69229734 T2 20000302; JP H06276044 A 19940930; US 5610564 A 19970311
DOCDB simple family (application)
EP 92830603 A 19921030; DE 69229734 T 19921030; JP 27355993 A 19931101; US 14023393 A 19931020